Segment Reporting - Summary of Statements of Operations Metrics Reviewed by CODM to Evaluate Performance Internally or As required under ASC 280 - Segment Reporting (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Aug. 04, 2018	Jul. 29, 2017	Aug. 04, 2018	Jul. 29, 2017
Segment Reporting Information [Line Items]
Net revenues	$ 640,798	$ 615,326	$ 1,198,204	$ 1,177,406
Gross profit	271,600	205,813	483,635	376,069
Depreciation and amortization	17,756	16,526	34,803	32,546
RH Segment [Member]
Segment Reporting Information [Line Items]
Net revenues	607,604	583,793	1,133,611	1,117,321
Gross profit	258,181	192,996	457,216	352,623
Depreciation and amortization	16,638	15,386	32,573	30,287
Waterworks [Member]
Segment Reporting Information [Line Items]
Net revenues	33,194	31,533	64,593	60,085
Gross profit	13,419	12,817	26,419	23,446
Depreciation and amortization	$ 1,118	$ 1,140	$ 2,230	$ 2,259

The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

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Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1,2)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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